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<title>Boost PP re-entrant versions</title>
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<div class="section">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="variadic_macro_data.vmd_reentrant"></a><a class="link" href="vmd_reentrant.html" title="Boost PP re-entrant versions">Boost PP re-entrant
versions</a>
</h2></div></div></div>
<p>
Nearly all macros in VMD have equivalent reentrant versions which are meant
to be used in a BOOST_PP_WHILE loop. These are versions which have an underscore
D suffix, take the next available BOOST_PP_WHILE iteration as their first parameter,
and then have the exact same functionality as their unsuffixed equivalents.
They can be used in BOOST_PP_WHILE loops to provide slightly quicker preprocessing
but, as the documentation for BOOST_PP_WHILE and BOOST_PP_WHILE_##d explain,
they do not have to be used.
</p>
<p>
These macros are:
</p>
<p>
Arrays
</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
BOOST_VMD_IS_ARRAY_D
</li>
<li class="listitem">
BOOST_VMD_IS_EMPTY_ARRAY_D
</li>
<li class="listitem">
BOOST_VMD_ASSERT_IS_ARRAY_D
</li>
</ul></div>
<p>
Identifiers
</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
BOOST_VMD_IS_IDENTIFIER_D
</li>
<li class="listitem">
BOOST_VMD_ASSERT_IS_IDENTIFIER_D
</li>
</ul></div>
<p>
Lists
</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
BOOST_VMD_IS_LIST_D
</li>
<li class="listitem">
BOOST_VMD_IS_EMPTY_LIST_D
</li>
<li class="listitem">
BOOST_VMD_ASSERT_IS_LIST_D
</li>
</ul></div>
<p>
Sequences
</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
BOOST_VMD_ELEM_D
</li>
<li class="listitem">
BOOST_VMD_ENUM_D
</li>
<li class="listitem">
BOOST_VMD_EQUAL_D
</li>
<li class="listitem">
BOOST_VMD_GET_TYPE_D
</li>
<li class="listitem">
BOOST_VMD_IS_MULTI_D
</li>
<li class="listitem">
BOOST_VMD_IS_UNARY_D
</li>
<li class="listitem">
BOOST_VMD_NOT_EQUAL_D
</li>
<li class="listitem">
BOOST_VMD_SIZE_D
</li>
<li class="listitem">
BOOST_VMD_TO_ARRAY_D
</li>
<li class="listitem">
BOOST_VMD_TO_LIST_D
</li>
<li class="listitem">
BOOST_VMD_TO_SEQ_D
</li>
<li class="listitem">
BOOST_VMD_TO_TUPLE_D
</li>
</ul></div>
<p>
Seqs
</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
BOOST_VMD_IS_SEQ_D
</li>
<li class="listitem">
BOOST_VMD_ASSERT_IS_SEQ_D
</li>
</ul></div>
<p>
Types
</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
BOOST_VMD_IS_TYPE_D
</li>
<li class="listitem">
BOOST_VMD_ASSERT_IS_TYPE_D
</li>
</ul></div>
<p>
Other
</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
BOOST_VMD_IS_PARENS_EMPTY_D
</li></ul></div>
</div>
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